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31 Matching questions

  1. metamorphic facies
  2. metamorphic texture
  3. metamorphic foliation
  4. Gneiss
  5. foliation
  6. Metasomatism
  7. shield
  8. phyllite
  9. schist
  10. Marble
  11. differential stress
  12. Metamorphism
  13. slate
  14. metamorphic mineral
  15. metamorphic zone
  16. Exhumation
  17. preferred mineral orientation
  18. metaconglomerate
  19. quartzite
  20. thermal metamorphism
  21. metamorphic aureole
  22. dynamic metamorphism
  23. Dynamothermal metamorphism
  24. metamorphic rock
  25. metamorphic grade
  26. hydrothermal metamorphism
  27. shock metamorphism
  28. burial metamorphism
  29. protolith
  30. regional metamorphism
  31. Hornfels
  1. a A metamorphic rock composed of calcite and transformed from a protolith of limestone.
  2. b An informal designation of the degree to which a rock has undergone metamorphism; high-grade rocks have endured higher temperatures than low-grade rocks.
  3. c The process (involving uplift and erosion) that returns deeply buried rocks to the surface.
  4. d A medium- to coarse-grained metamorphic rock that possesses schistosity.
  5. e Metamorphism caused by heat conducted into country rock from an igneous intrusion.
  6. f Layering formed as a consequence of the alignment of mineral grains, or of compositional banding in a metamorphic rock.
  7. g The arrangement of grains (e.g., preferred orientation) formed as a result of metamorphism.
  8. h The process by which a rocks overall chemical composition changes during metamorphism because of reactions with hot water that bring in or remove elements.
  9. i The region between two metamorphic isograds, typically named after an index mineral found within the region.
  10. j An older, interior region of a continent.
  11. k Solid-state changes in rock that result from the extreme pressure accompanying a meteorite impact.
  12. l Metamorphism due to the increase in temperature and pressure in a rock when it has been buried to a depth of several kilometers.
  13. m A metamorphic rock composed of quartz and transformed from a protolith of quartz sandstone.
  14. n A condition causing a material to experience a push or pull in one direction of a greater magnitude than the push or pull in another direction; in some cases, differential stress can result in shearing.
  15. o Metamorphism that involves heat, pressure, and shearing.
  16. p Conglomerate that has undergone metamorphism, but in which clasts are still recognizable; typically the clasts are stretched or flattened.
  17. q A compositionally banded metamorphic rock typically composed of alternating dark- and light-colored layers.
  18. r The change that occurs in a rock due to interaction with high-temperature water solutions.
  19. s The metamorphic texture that exists where platy grains lie parallel to one another and/or elongate grains align in the same direction.
  20. t The original rock from which a metamorphic rock formed.
  21. u The process by which one kind of rock transforms into a different kind of rock.
  22. v Rock that forms when preexisting rock changes into new rock as a result of an increase in pressure and temperature and/or shearing under elevated temperatures; metamorphism occurs without the rock first becoming a melt or a sediment.
  23. w A fine-grained metamorphic rock with a foliation caused by the preferred orientation of very fine-grained mica.
  24. x The region around a pluton, stretching tens to hundreds of meters out, in which heat transferred into the country rock and metamorphosed the country rock.
  25. y A mineral formed by solid-state transitions under metamorphic conditions.
  26. z Metamorphism of a broad region, usually the result of deep burial during an orogeny.
  27. aa A fabric defined by parallel surfaces or layers that develop in a rock as a result of metamorphism; schistocity and gneissic layering are examples.
  28. ab A set of metamorphic mineral assemblages indicative of metamorphism under a specific range of pressures and temperatures.
  29. ac Fine-grained, low-grade metamorphic rock, formed by the metamorphism of shale.
  30. ad Rock that undergoes metamorphism simply because of a change in temperature, without being subjected to differential stress.
  31. ae Metamorphism that occurs as a consequence of shearing alone, with no change in temperature or pressure.